Hello everyone, I am fairly new to pool care (had for just over a year). This week when trying our Lxi heater out (it is about a year old) I got a fault message of "High Limit" and the burners did not fire.
I have done some research and believe I know where the limit switch is located, how to test it, and how to replace. However I wanted to confirm with everyone before doing so.
As for the location I can see where the high limit runs behind the PIB to the outside of the heater, just want to confirm these are the only 2 I need to replace. I ordered a replacement R0023000 150deg high limit switch and a R0457200 130deg high limit switch to replace the 2 in the picture below.
I pull the the limit switch out today and it was fairly corroded. I tried to clean it and put back but it is still throwing the error. I can hear water running through the pipes, so I assume it isn't a flow issue.
Anything else I should check or do? The plan right now is to just replace the 2 high limit switches and see if it fires up.